21865845

素因数分解:

$3^1\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1697}}^1$

素因数の和:2564

約数の個数: 16

約数和(自身を含む): 35046720

約数和(自身を除く): 13180875

約数列:

[1, 3, 5, 15, 859, 1697, 2577, 4295, 5091, 8485, 12885, 25455, 1457723, 4373169, 7288615, 21865845]

約数ペア:

[(1, 21865845), (3, 7288615), (5, 4373169), (15, 1457723), (859, 25455), (1697, 12885), (2577, 8485), (4295, 5091)]